Execution Chart

We display below the execution chart for this examination (boot time has been removed).

Trace from the execution

Formatting '/data/fkordon/mcc2023-input.r185-tall-167838872200461.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2023-input.qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
.................
=====================================================================
Generated by BenchKit 2-5348
Executing tool smartxred
Input is FunctionPointer-PT-c016, examination is ReachabilityDeadlock
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r185-tall-167838872200461
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 4.6M
-rw-r--r-- 1 mcc users 7.0K Feb 25 11:58 CTLCardinality.txt
-rw-r--r-- 1 mcc users 73K Feb 25 11:58 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.3K Feb 25 11:56 CTLFireability.txt
-rw-r--r-- 1 mcc users 45K Feb 25 11:56 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.9K Feb 25 16:09 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Feb 25 16:09 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Feb 25 16:09 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Feb 25 16:09 LTLFireability.xml
-rw-r--r-- 1 mcc users 11K Feb 25 12:06 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 112K Feb 25 12:06 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.2K Feb 25 12:02 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 78K Feb 25 12:02 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Feb 25 16:09 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Feb 25 16:09 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 equiv_col
-rw-r--r-- 1 mcc users 5 Mar 5 18:22 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 iscolored
-rw-r--r-- 1 mcc users 4.2M Mar 5 18:22 model.pnml

--------------------
content from stdout:

=== Data for post analysis generated by BenchKit (invocation template)

The expected result is a vector of booleans
BOOL_VECTOR

FORMULA_NAME ReachabilityDeadlock

=== Now, execution of the tool begins

BK_START 1679425293588

bash -c /home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n "BK_STOP " ; date -u +%s%3N
Invoking MCC driver with
BK_TOOL=smartxred
BK_EXAMINATION=ReachabilityDeadlock
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=FunctionPointer-PT-c016
Applying reductions before tool smart
Invoking reducer
Running Version 202303021504
[2023-03-21 19:01:35] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityDeadlock, -timeout, 180, -rebuildPNML]
[2023-03-21 19:01:35] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-21 19:01:35] [INFO ] Load time of PNML (sax parser for PT used): 362 ms
[2023-03-21 19:01:35] [INFO ] Transformed 2826 places.
[2023-03-21 19:01:35] [INFO ] Transformed 8960 transitions.
[2023-03-21 19:01:35] [INFO ] Parsed PT model containing 2826 places and 8960 transitions and 36096 arcs in 470 ms.
Parsed 1 properties from file /home/mcc/execution/ReachabilityDeadlock.xml in 2 ms.
Working with output stream class java.io.PrintStream
Deduced a syphon composed of 1198 places in 47 ms
Reduce places removed 1198 places and 2998 transitions.
Built sparse matrix representations for Structural reductions in 9 ms.35178KB memory used
Starting structural reductions in DEADLOCK mode, iteration 0 : 1628/1628 places, 5962/5962 transitions.
Computed a total of 192 stabilizing places and 512 stable transitions
Graph (complete) has 9876 edges and 1628 vertex of which 1611 are kept as prefixes of interest. Removing 17 places using SCC suffix rule.52 ms
Discarding 17 places :
Also discarding 0 output transitions
Computed a total of 192 stabilizing places and 512 stable transitions
Discarding 302 places :
Symmetric choice reduction at 0 with 302 rule applications. Total rules 303 place count 1309 transition count 3662
Iterating global reduction 0 with 302 rules applied. Total rules applied 605 place count 1309 transition count 3662
Ensure Unique test removed 352 transitions
Reduce isomorphic transitions removed 352 transitions.
Computed a total of 192 stabilizing places and 512 stable transitions
Iterating post reduction 0 with 352 rules applied. Total rules applied 957 place count 1309 transition count 3310
Computed a total of 192 stabilizing places and 512 stable transitions
Discarding 158 places :
Symmetric choice reduction at 1 with 158 rule applications. Total rules 1115 place count 1151 transition count 2994
Iterating global reduction 1 with 158 rules applied. Total rules applied 1273 place count 1151 transition count 2994
Ensure Unique test removed 64 transitions
Reduce isomorphic transitions removed 64 transitions.
Computed a total of 192 stabilizing places and 512 stable transitions
Iterating post reduction 1 with 64 rules applied. Total rules applied 1337 place count 1151 transition count 2930
Computed a total of 192 stabilizing places and 512 stable transitions
Discarding 14 places :
Symmetric choice reduction at 2 with 14 rule applications. Total rules 1351 place count 1137 transition count 2902
Iterating global reduction 2 with 14 rules applied. Total rules applied 1365 place count 1137 transition count 2902
Computed a total of 192 stabilizing places and 512 stable transitions
Discarding 14 places :
Symmetric choice reduction at 2 with 14 rule applications. Total rules 1379 place count 1123 transition count 2874
Iterating global reduction 2 with 14 rules applied. Total rules applied 1393 place count 1123 transition count 2874
Computed a total of 192 stabilizing places and 512 stable transitions
Discarding 14 places :
Symmetric choice reduction at 2 with 14 rule applications. Total rules 1407 place count 1109 transition count 2846
Iterating global reduction 2 with 14 rules applied. Total rules applied 1421 place count 1109 transition count 2846
Computed a total of 192 stabilizing places and 512 stable transitions
Discarding 14 places :
Symmetric choice reduction at 2 with 14 rule applications. Total rules 1435 place count 1095 transition count 2818
Iterating global reduction 2 with 14 rules applied. Total rules applied 1449 place count 1095 transition count 2818
Computed a total of 192 stabilizing places and 512 stable transitions
Discarding 14 places :
Symmetric choice reduction at 2 with 14 rule applications. Total rules 1463 place count 1081 transition count 2790
Iterating global reduction 2 with 14 rules applied. Total rules applied 1477 place count 1081 transition count 2790
Computed a total of 192 stabilizing places and 512 stable transitions
Discarding 14 places :
Symmetric choice reduction at 2 with 14 rule applications. Total rules 1491 place count 1067 transition count 2762
Iterating global reduction 2 with 14 rules applied. Total rules applied 1505 place count 1067 transition count 2762
Computed a total of 192 stabilizing places and 512 stable transitions
Discarding 14 places :
Symmetric choice reduction at 2 with 14 rule applications. Total rules 1519 place count 1053 transition count 2734
Iterating global reduction 2 with 14 rules applied. Total rules applied 1533 place count 1053 transition count 2734
Computed a total of 192 stabilizing places and 512 stable transitions
Discarding 63 places :
Symmetric choice reduction at 2 with 63 rule applications. Total rules 1596 place count 990 transition count 2496
Iterating global reduction 2 with 63 rules applied. Total rules applied 1659 place count 990 transition count 2496
Computed a total of 192 stabilizing places and 512 stable transitions
Discarding 63 places :
Symmetric choice reduction at 2 with 63 rule applications. Total rules 1722 place count 927 transition count 2244
Iterating global reduction 2 with 63 rules applied. Total rules applied 1785 place count 927 transition count 2244
Computed a total of 192 stabilizing places and 512 stable transitions
Discarding 63 places :
Symmetric choice reduction at 2 with 63 rule applications. Total rules 1848 place count 864 transition count 2104
Iterating global reduction 2 with 63 rules applied. Total rules applied 1911 place count 864 transition count 2104
Computed a total of 192 stabilizing places and 512 stable transitions
Discarding 63 places :
Symmetric choice reduction at 2 with 63 rule applications. Total rules 1974 place count 801 transition count 1978
Iterating global reduction 2 with 63 rules applied. Total rules applied 2037 place count 801 transition count 1978
Computed a total of 192 stabilizing places and 512 stable transitions
Discarding 63 places :
Symmetric choice reduction at 2 with 63 rule applications. Total rules 2100 place count 738 transition count 1852
Iterating global reduction 2 with 63 rules applied. Total rules applied 2163 place count 738 transition count 1852
Computed a total of 192 stabilizing places and 512 stable transitions
Discarding 63 places :
Symmetric choice reduction at 2 with 63 rule applications. Total rules 2226 place count 675 transition count 1726
Iterating global reduction 2 with 63 rules applied. Total rules applied 2289 place count 675 transition count 1726
Computed a total of 192 stabilizing places and 512 stable transitions
Discarding 63 places :
Symmetric choice reduction at 2 with 63 rule applications. Total rules 2352 place count 612 transition count 1600
Iterating global reduction 2 with 63 rules applied. Total rules applied 2415 place count 612 transition count 1600
Computed a total of 192 stabilizing places and 512 stable transitions
Discarding 7 places :
Symmetric choice reduction at 2 with 7 rule applications. Total rules 2422 place count 605 transition count 1586
Iterating global reduction 2 with 7 rules applied. Total rules applied 2429 place count 605 transition count 1586
Computed a total of 192 stabilizing places and 512 stable transitions
Computed a total of 192 stabilizing places and 512 stable transitions
Drop transitions removed 2 transitions
Redundant transition composition rules discarded 2 transitions
Iterating global reduction 2 with 2 rules applied. Total rules applied 2431 place count 605 transition count 1584
Computed a total of 192 stabilizing places and 512 stable transitions
Computed a total of 192 stabilizing places and 512 stable transitions
Applied a total of 2431 rules in 1857 ms. Remains 605 /1628 variables (removed 1023) and now considering 1584/5962 (removed 4378) transitions.
Finished structural reductions in DEADLOCK mode , in 1 iterations and 1858 ms. Remains : 605/1628 places, 1584/5962 transitions.
Random walk for 1250002 steps, including 0 resets, run took 2085 ms (no deadlock found). (steps per millisecond=599 )
Random directed walk for 1250009 steps, including 0 resets, run took 2805 ms (no deadlock found). (steps per millisecond=445 )
[2023-03-21 19:01:42] [INFO ] Flow matrix only has 1057 transitions (discarded 527 similar events)
// Phase 1: matrix 1057 rows 605 cols
[2023-03-21 19:01:42] [INFO ] Computed 2 place invariants in 25 ms
[2023-03-21 19:01:43] [INFO ] [Real]Absence check using 1 positive place invariants in 6 ms returned sat
[2023-03-21 19:01:43] [INFO ] [Real]Absence check using 1 positive and 1 generalized place invariants in 3 ms returned sat
[2023-03-21 19:01:43] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-21 19:01:44] [INFO ] [Real]Absence check using state equation in 1347 ms returned sat
[2023-03-21 19:01:44] [INFO ] Solution in real domain found non-integer solution.
[2023-03-21 19:01:45] [INFO ] [Nat]Absence check using 1 positive place invariants in 38 ms returned sat
[2023-03-21 19:01:45] [INFO ] [Nat]Absence check using 1 positive and 1 generalized place invariants in 2 ms returned sat
[2023-03-21 19:01:45] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-21 19:01:45] [INFO ] [Nat]Absence check using state equation in 446 ms returned sat
[2023-03-21 19:01:45] [INFO ] State equation strengthened by 262 read => feed constraints.
[2023-03-21 19:01:45] [INFO ] [Nat]Added 262 Read/Feed constraints in 136 ms returned sat
[2023-03-21 19:01:45] [INFO ] Computed and/alt/rep : 204/290/202 causal constraints (skipped 853 transitions) in 163 ms.
[2023-03-21 19:01:46] [INFO ] Deduced a trap composed of 131 places in 182 ms of which 3 ms to minimize.
[2023-03-21 19:01:46] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 312 ms
[2023-03-21 19:01:46] [INFO ] Added : 19 causal constraints over 5 iterations in 1074 ms. Result :sat
Attempting to minimize the solution found.
Minimization took 24 ms.
Parikh directed walk for 37100 steps, including 37100 resets, run took 936 ms. (steps per millisecond=39 )
Random directed walk for 500000 steps, including 0 resets, run took 1098 ms (no deadlock found). (steps per millisecond=455 )
Random walk for 500000 steps, including 0 resets, run took 819 ms (no deadlock found). (steps per millisecond=610 )
Random directed walk for 500000 steps, including 0 resets, run took 1232 ms (no deadlock found). (steps per millisecond=405 )
Random walk for 500000 steps, including 0 resets, run took 1008 ms (no deadlock found). (steps per millisecond=496 )
Starting structural reductions in DEADLOCK mode, iteration 0 : 605/605 places, 1584/1584 transitions.
Computed a total of 192 stabilizing places and 512 stable transitions
Computed a total of 192 stabilizing places and 512 stable transitions
Computed a total of 192 stabilizing places and 512 stable transitions
Applied a total of 0 rules in 78 ms. Remains 605 /605 variables (removed 0) and now considering 1584/1584 (removed 0) transitions.
[2023-03-21 19:01:52] [INFO ] Flow matrix only has 1057 transitions (discarded 527 similar events)
[2023-03-21 19:01:52] [INFO ] Invariant cache hit.
[2023-03-21 19:01:52] [INFO ] Implicit Places using invariants in 712 ms returned []
[2023-03-21 19:01:52] [INFO ] Flow matrix only has 1057 transitions (discarded 527 similar events)
[2023-03-21 19:01:52] [INFO ] Invariant cache hit.
[2023-03-21 19:01:53] [INFO ] State equation strengthened by 262 read => feed constraints.
[2023-03-21 19:01:54] [INFO ] Implicit Places using invariants and state equation in 1951 ms returned []
Implicit Place search using SMT with State Equation took 2666 ms to find 0 implicit places.
[2023-03-21 19:01:54] [INFO ] Redundant transitions in 93 ms returned []
[2023-03-21 19:01:54] [INFO ] Flow matrix only has 1057 transitions (discarded 527 similar events)
[2023-03-21 19:01:54] [INFO ] Invariant cache hit.
[2023-03-21 19:01:55] [INFO ] Dead Transitions using invariants and state equation in 486 ms found 0 transitions.
Finished structural reductions in DEADLOCK mode , in 1 iterations and 3340 ms. Remains : 605/605 places, 1584/1584 transitions.
Random walk for 1250014 steps, including 0 resets, run took 2007 ms (no deadlock found). (steps per millisecond=622 )
Random directed walk for 1250002 steps, including 0 resets, run took 2784 ms (no deadlock found). (steps per millisecond=448 )
[2023-03-21 19:02:00] [INFO ] Flow matrix only has 1057 transitions (discarded 527 similar events)
[2023-03-21 19:02:00] [INFO ] Invariant cache hit.
[2023-03-21 19:02:00] [INFO ] [Real]Absence check using 1 positive place invariants in 3 ms returned sat
[2023-03-21 19:02:00] [INFO ] [Real]Absence check using 1 positive and 1 generalized place invariants in 8 ms returned sat
[2023-03-21 19:02:00] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-21 19:02:01] [INFO ] [Real]Absence check using state equation in 1394 ms returned sat
[2023-03-21 19:02:01] [INFO ] Solution in real domain found non-integer solution.
[2023-03-21 19:02:02] [INFO ] [Nat]Absence check using 1 positive place invariants in 37 ms returned sat
[2023-03-21 19:02:02] [INFO ] [Nat]Absence check using 1 positive and 1 generalized place invariants in 4 ms returned sat
[2023-03-21 19:02:02] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-21 19:02:02] [INFO ] [Nat]Absence check using state equation in 400 ms returned sat
[2023-03-21 19:02:02] [INFO ] State equation strengthened by 262 read => feed constraints.
[2023-03-21 19:02:02] [INFO ] [Nat]Added 262 Read/Feed constraints in 131 ms returned sat
[2023-03-21 19:02:02] [INFO ] Computed and/alt/rep : 204/290/202 causal constraints (skipped 853 transitions) in 108 ms.
[2023-03-21 19:02:03] [INFO ] Deduced a trap composed of 131 places in 137 ms of which 2 ms to minimize.
[2023-03-21 19:02:03] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 241 ms
[2023-03-21 19:02:03] [INFO ] Added : 19 causal constraints over 5 iterations in 826 ms. Result :sat
Attempting to minimize the solution found.
Minimization took 17 ms.
Parikh directed walk for 37100 steps, including 37100 resets, run took 901 ms. (steps per millisecond=41 )
Random directed walk for 500010 steps, including 0 resets, run took 1074 ms (no deadlock found). (steps per millisecond=465 )
Random walk for 500001 steps, including 0 resets, run took 835 ms (no deadlock found). (steps per millisecond=598 )
Random directed walk for 500000 steps, including 0 resets, run took 1089 ms (no deadlock found). (steps per millisecond=459 )
Random walk for 500000 steps, including 0 resets, run took 782 ms (no deadlock found). (steps per millisecond=639 )
[2023-03-21 19:02:08] [INFO ] Flatten gal took : 349 ms
[2023-03-21 19:02:08] [INFO ] Export to MCC of 1 properties in file /home/mcc/execution/ReachabilityDeadlock.sr.xml took 1 ms.
[2023-03-21 19:02:08] [INFO ] Export to PNML in file /home/mcc/execution/model.sr.pnml of net with 1628 places, 5962 transitions and 24104 arcs took 29 ms.
Total runtime 33515 ms.
There are residual formulas that ITS could not solve within timeout
======================================================
========== this is Smart for the MCC'2018 ============
======================================================
Running FunctionPointer (PT), instance c016
Examination ReachabilityDeadlock
Parser /home/mcc/BenchKit/bin//../reducer/bin//../../smart/bin//parser/DeadlockParse.jar
Model checker /home/mcc/BenchKit/bin//../reducer/bin//../../smart/bin//rem_exec//smart

PNML FILE: model.pnml
Petri model created: 1628 places, 5962 transitions, 24104 arcs.
TIME LIMIT: Killed by timeout after 1800 seconds
MemTotal: 16393216 kB
MemFree: 2910040 kB
After kill :
MemTotal: 16393216 kB
MemFree: 16147272 kB

BK_TIME_CONFINEMENT_REACHED

--------------------
content from stderr:

+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
+ export PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ export LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
+ LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
++ sed s/.jar//
++ ls /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202303021504.jar
++ perl -pe 's/.*\.//g'
+ VERSION=202303021504
+ echo 'Running Version 202303021504'
+ /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/its-tools -pnfolder /home/mcc/execution -examination ReachabilityDeadlock -timeout 180 -rebuildPNML
Caught signal 15, terminating.

Sequence of Actions to be Executed by the VM

This is useful if one wants to reexecute the tool in the VM from the submitted image disk.

set -x
# this is for BenchKit: configuration of major elements for the test
export BK_INPUT="FunctionPointer-PT-c016"
export BK_EXAMINATION="ReachabilityDeadlock"
export BK_TOOL="smartxred"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="1800"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"

# this is specific to your benchmark or test

export BIN_DIR="$HOME/BenchKit/bin"

# remove the execution directoty if it exists (to avoid increse of .vmdk images)
if [ -d execution ] ; then
rm -rf execution
fi

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-5348"
echo " Executing tool smartxred"
echo " Input is FunctionPointer-PT-c016, examination is ReachabilityDeadlock"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r185-tall-167838872200461"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/FunctionPointer-PT-c016.tgz
mv FunctionPointer-PT-c016 execution
cd execution
if [ "ReachabilityDeadlock" = "ReachabilityDeadlock" ] || [ "ReachabilityDeadlock" = "UpperBounds" ] || [ "ReachabilityDeadlock" = "QuasiLiveness" ] || [ "ReachabilityDeadlock" = "StableMarking" ] || [ "ReachabilityDeadlock" = "Liveness" ] || [ "ReachabilityDeadlock" = "OneSafe" ] || [ "ReachabilityDeadlock" = "StateSpace" ]; then
rm -f GenericPropertiesVerdict.xml
fi
pwd
ls -lh

echo
echo "--------------------"
echo "content from stdout:"
echo
echo "=== Data for post analysis generated by BenchKit (invocation template)"
echo
if [ "ReachabilityDeadlock" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityDeadlock" != "StateSpace" ] ; then
echo "The expected result is a vector of booleans"
echo BOOL_VECTOR
else
echo "no data necessary for post analysis"
fi
echo
if [ -f "ReachabilityDeadlock.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property ReachabilityDeadlock.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "ReachabilityDeadlock.xml" ] ; then # for cunf (txt files deleted;-)
echo echo "here is the order used to build the result vector(from xml file)"
for x in $(grep '' ReachabilityDeadlock.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "ReachabilityDeadlock" = "ReachabilityDeadlock" ] || [ "ReachabilityDeadlock" = "QuasiLiveness" ] || [ "ReachabilityDeadlock" = "StableMarking" ] || [ "ReachabilityDeadlock" = "Liveness" ] || [ "ReachabilityDeadlock" = "OneSafe" ] ; then
echo "FORMULA_NAME ReachabilityDeadlock"
fi
echo
echo "=== Now, execution of the tool begins"
echo
echo -n "BK_START "
date -u +%s%3N
echo
timeout -s 9 $BK_TIME_CONFINEMENT bash -c "/home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n \"BK_STOP \" ; date -u +%s%3N"
if [ $? -eq 137 ] ; then
echo
echo "BK_TIME_CONFINEMENT_REACHED"
fi
echo
echo "--------------------"
echo "content from stderr:"
echo
cat STDERR ;